/*
* ox.c
* vim: expandtab:ts=4:sts=4:sw=4
*
* Copyright (C) 2020 Stefan Kropp <stefan@debxwoody.de>
*
* This file is part of Profanity.
*
* Profanity is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Profanity is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Profanity. If not, see <https://www.gnu.org/licenses/>.
*
* In addition, as a special exception, the copyright holders give permission to
* link the code of portions of this program with the OpenSSL library under
* certain conditions as described in each individual source file, and
* distribute linked combinations including the two.
*
* You must obey the GNU General Public License in all respects for all of the
* code used other than OpenSSL. If you modify file(s) with this exception, you
* may extend this exception to your version of the file(s), but you are not
* obligated to do so. If you do not wish to do so, delete this exception
* statement from your version. If you delete this exception statement from all
* source files in the program, then also delete it here.
*
*/
#include <glib.h>
#include <assert.h>
#include "log.h"
#include "ui/ui.h"
#include "xmpp/connection.h"
#include "xmpp/stanza.h"
#include "pgp/gpg.h"
static void _ox_metadata_node__public_key(const char* const fingerprint);
/*!
* \brief Current Date and Time.
*
* XEP-0082: XMPP Date and Time Profiles
* https://xmpp.org/extensions/xep-0082.html
*
* \return YYYY-MM-DDThh:mm:ssZ
*
*/
static char* _gettimestamp();
/*!
*
<pre>
<iq type='set' from='juliet@example.org/balcony' id='publish1'>
<pubsub xmlns='http://jabber.org/protocol/pubsub'>
<publish node='urn:xmpp:openpgp:0:public-keys:1357B01865B2503C18453D208CAC2A9678548E35'>
<item id='2020-01-21T10:46:21Z'>
<pubkey xmlns='urn:xmpp:openpgp:0'>
<data>
BASE64_OPENPGP_PUBLIC_KEY
</data>
</pubkey>
</item>
</publish>
</pubsub>
</iq>
</pre>
*
*/
gboolean
ox_announce_public_key(const char* const filename) {
assert(filename);
cons_show("Annonuce OpenPGP Key for OX %s ...", filename);
log_info("Annonuce OpenPGP Key of OX: %s", filename);
// key the key and the fingerprint via GnuPG from file
char* key = NULL;
char* fp = NULL;
p_ox_gpg_readkey(filename, &key, &fp);
if( !(key && fp) ) {
cons_show("Error during OpenPGP OX announce. See log file for more information");
return FALSE;
} else {
log_info("Annonuce OpenPGP Key for Fingerprint: %s", fp);
xmpp_ctx_t * const ctx = connection_get_ctx();
char *id = xmpp_uuid_gen(ctx);
xmpp_stanza_t* iq = xmpp_iq_new(ctx, STANZA_TYPE_SET, id);
xmpp_stanza_set_from(iq, xmpp_conn_get_jid(connection_get_conn()));
xmpp_stanza_t* pubsub = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(pubsub, STANZA_NAME_PUBSUB);
xmpp_stanza_set_ns(pubsub, XMPP_FEATURE_PUBSUB);
GString* node_name = g_string_new(STANZA_NS_OPENPGP_0_PUBLIC_KEYS);
g_string_append(node_name, ":");
g_string_append(node_name, fp);
xmpp_stanza_t* publish = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(publish, STANZA_NAME_PUBLISH);
xmpp_stanza_set_attribute(publish, STANZA_ATTR_NODE, node_name->str) ;
xmpp_stanza_t* item = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(item, STANZA_NAME_ITEM);
xmpp_stanza_set_attribute(item, STANZA_ATTR_ID, _gettimestamp()) ;
xmpp_stanza_t* pubkey = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(pubkey, STANZA_NAME_PUPKEY);
xmpp_stanza_set_ns(pubkey, STANZA_NS_OPENPGP_0);
xmpp_stanza_t* data = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(data, STANZA_NAME_DATA);
xmpp_stanza_t* keydata = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(keydata,key);
xmpp_stanza_add_child(data, keydata);
xmpp_stanza_add_child(pubkey, data);
xmpp_stanza_add_child(item, pubkey);
xmpp_stanza_add_child(publish, item);
xmpp_stanza_add_child(pubsub, publish);
xmpp_stanza_add_child(iq, pubsub);
xmpp_send (connection_get_conn(), iq);
_ox_metadata_node__public_key(fp);
}
return TRUE;
}
/*!
*
*
*
<pre>
<iq type='set' from='juliet@example.org/balcony' id='publish1'>
<pubsub xmlns='http://jabber.org/protocol/pubsub'>
<publish node='urn:xmpp:openpgp:0:public-keys'>
<item>
<public-keys-list xmlns='urn:xmpp:openpgp:0'>
<pubkey-metadata
v4-fingerprint='1357B01865B2503C18453D208CAC2A9678548E35'
date='2018-03-01T15:26:12Z'
/>
<pubkey-metadata
v4-fingerprint='67819B343B2AB70DED9320872C6464AF2A8E4C02'
date='1953-05-16T12:00:00Z'
/>
</public-keys-list>
</item>
</publish>
</pubsub>
</iq>
</pre>
*
*/
void
_ox_metadata_node__public_key(const char* const fingerprint) {
log_info("Annonuce OpenPGP metadata: %s", fingerprint);
assert(fingerprint);
assert(strlen(fingerprint) == 40);
// iq
xmpp_ctx_t * const ctx = connection_get_ctx();
char *id = xmpp_uuid_gen(ctx);
xmpp_stanza_t* iq = xmpp_iq_new(ctx, STANZA_TYPE_SET, id);
xmpp_stanza_set_from(iq, xmpp_conn_get_jid(connection_get_conn()));
// pubsub
xmpp_stanza_t* pubsub = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(pubsub, STANZA_NAME_PUBSUB);
xmpp_stanza_set_ns(pubsub, XMPP_FEATURE_PUBSUB);
// publish
xmpp_stanza_t* publish = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(publish, STANZA_NAME_PUBLISH);
xmpp_stanza_set_attribute(publish, STANZA_ATTR_NODE, STANZA_NS_OPENPGP_0_PUBLIC_KEYS) ;
// item
xmpp_stanza_t* item = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(item, STANZA_NAME_ITEM);
// public-keys-list
xmpp_stanza_t* publickeyslist = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(publickeyslist, STANZA_NAME_PUBLIC_KEYS_LIST);
xmpp_stanza_set_ns(publickeyslist, STANZA_NS_OPENPGP_0);
// pubkey-metadata
xmpp_stanza_t* pubkeymetadata = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(pubkeymetadata, STANZA_NAME_PUBKEY_METADATA);
xmpp_stanza_set_attribute(pubkeymetadata, STANZA_ATTR_V4_FINGERPRINT, fingerprint);
xmpp_stanza_set_attribute(pubkeymetadata, STANZA_ATTR_DATE, _gettimestamp());
xmpp_stanza_add_child(publickeyslist,pubkeymetadata );
xmpp_stanza_add_child(item, publickeyslist );
xmpp_stanza_add_child(publish,item );
xmpp_stanza_add_child(pubsub, publish);
xmpp_stanza_add_child(iq, pubsub);
xmpp_send (connection_get_conn(), iq);
}
// Date and Time (XEP-0082)
char* _gettimestamp() {
time_t now = time(NULL);
struct tm* tm = localtime(&now);
char buf[255];
strftime(buf, sizeof(buf), "%FT%T", tm);
GString* d = g_string_new(buf);
g_string_append(d, "Z");
return strdup(d->str);
}